You'd think with all the tumultuous weather and winds the Earth experiences, the planet would be covered in a fairly even mix of green space. But it's not. Some parts are covered in fertile rain forests, while others are barren deserts. And it's all because of a weather effect known as Hadley Cells. Read More >>

Lima, Peru, has the unfortunate distinction of being the second largest capital in the world located in a desert. It rarely rains there, and many of the residents are forced to get their water from dirty wells. But on the flipside, the humidity also hovers around 98 percent, so the local University of Engineering and Technology designed a clever billboard that's able to harvest the moisture in the air and turn it into potable water. Read More >>